Johnson Controls P70CA-2 Single Pole High Pressure Control
The Johnson Controls P70CA-2 is a rugged, single-pole high pressure control designed for reliable refrigerant system protection across a wide range of commercial and industrial HVAC/R applications. Featuring a Close-on-High, Open-on-Low switching action, this SPST control automatically interrupts the circuit when system pressure rises to an unsafe level, safeguarding compressors and refrigeration equipment from damage due to excessive high-side pressure.
Key Features
- Single Pole, Single Throw (SPST) switching action — Close High, Open Low
- Operating pressure range: 50 PSI to 450 PSI
- Adjustable differential range: 60 PSI to 150 PSI
- Maximum overpressure rating: 525 PSIG for added safety margin
- 1/4″ Male Flare pressure connection for easy field installation
- Compatible with “All Range” refrigerants: R-12, R-22, R-134A, and R-500
Application & Compatibility
The P70CA-2 is engineered for use with a broad spectrum of common refrigerants, making it a versatile solution for service technicians and contractors working on legacy and modern refrigeration systems alike. Its wide pressure range and robust overpressure tolerance make it suitable for a variety of compressor protection and high-pressure cutout applications in commercial refrigeration and air conditioning equipment.
Specifications
- SKU: P70CA-2
- Brand: Johnson Controls
- Switch Type: SPST (Single Pole, Single Throw)
- Action: Close High, Open Low
- Pressure Range: 50 PSI – 450 PSI
- Differential Range: 60 PSI – 150 PSI
- Maximum Overpressure: 525 PSIG
- Pressure Connection: 1/4″ Male Flare
- Compatible Refrigerants: R-12, R-22, R-134A, R-500








